Meteorology
Bogan Shire is supported by agricultural production, grazing of sheep and cattle and cropping, primarily wheat. The area averages about 17 inches (430 mm) per year. However, there is great variability in the rainfall. In 1888 Nyngan had only 7.5 inches (190 mm) recorded, while in 1950 it had nearly 45 inches (1,100 mm).
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